Related Experiment Video
Updated: Jan 19, 2026
Third Law of Thermodynamics and Standard Molar Entropy
Understanding kinetics and thermodynamics of the interactions between amitriptyline or eosin yellow and
Francisco J L Ferreira1, Lucinaldo S Silva2, Mateus S da Silva1
1Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64049-550 Teresina, PI, Brazil.
Abstract:
A new adsorbent matrix (Cel-SiN) for the adsorption of the dye eosin yellow (EY) and the drug amitriptyline (AMI) from aqueous media has been synthesized. The Cel-SiN matrix was obtained via chemical modification of cellulose with (3-aminopropyl)trimethoxysilane. Successful modification was confirmed using Fourier transform infrared (FTIR) and 13C and 29Si solid state nuclear magnetic resonance (SSNMR) spectroscopies, thermal analysis (TG/DTG), X-ray diffraction (XRD), and elemental analysis. The effects of pH, contact time, concentration, and temperature were evaluated in batch adsorption tests. Cel-SiN efficiently adsorbed AMI and EY in aqueous media, with maximum adsorption capacities of 92.28 ± 1.34 mg g-1 for AMI (pH = 7, time =240 min, and temperature = 318 K) and 61.0 ± 0.36 mg g-1 for EY (pH = 5, time =80 min, and temperature = 298 K). The adsorption process occurs mainly via hydrogen bonding interactions for AMI and electrostatic interactions for EY.
More Related Videos
07:03A Modified Co-Culture System for Understanding Granulosa-Theca Cell Interactions in the Bovine Ovary
Published on: September 19, 2025
06:02Determining the Thermodynamic and Kinetic Association of a DNA Aptamer and Tetracycline Using Isothermal Titration Calorimetry
Published on: August 23, 2022
Related Concept Videos
Third Law of Thermodynamics
First Law of Thermodynamics
First Law of Thermodynamics
Second Law of Thermodynamics
Second Law of Thermodynamics
07:03A Modified Co-Culture System for Understanding Granulosa-Theca Cell Interactions in the Bovine Ovary